Why does my friend hate me?!

I have been friends with her since 6th grade and I introduce her to two of my friends and she becomes besties with them she goes to places with my friends without me makes plans excluding me infront of me! And she called me ugly more times than I can count there are so much more I can say about her but it’s 2 am but here’s a poll
Q:do you think my friends have a reason to exclude me in everything bcs I’m weird?